<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>

<body>
  <!-- 1. 准备容器 -->
  <div id='app'>
    <!-- 4. 渲染数据 -->
    账户：<input type="text" v-model="username"> <br><br>
    密码：<input type="password" v-model="password"> <br><br>
    <button @click="login">登录</button>
    <button @click="reset">重置</button>
  </div>
  <!-- 2. 引入vuejs -->
  <script src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script>
  <script>
    // 3. 创建Vue实例
    const app = new Vue({
      el: '#app',
      data: {
        username: '',
        password: ''
      },
      methods : {
        login ( ) {
          console.log(this.username , this.password);
        },
        reset ( ) {
          this.username = ''
          this.password = ''
        }
      }
    })
  </script>
</body>

</html>